At that point, the rig calculates where light entered the polymer by measuring how much it has diminished during its travel time, and then composes an image from that data.

ENGADGET

In light of recent accidents involving deepwater facilities, rig operators like Transocean are facing tougher regulatory scrutiny, pushing up costs.

FORBES: Transocean Stock Pumping Up To $58

You might remember that I said on Thursday that influential investors were saying he would probably have to quit, in the light of Barclays' admission that it tried to rig important interest rates.

BBC: With Agius's exit from Barclays, will Diamond stay?